SEOUL, South Korea — Samsung Electronics Co. has unveiled a smaller and cheaper version of the Galaxy S III smartphone with the same screen size as the iPhone 5.

Samsung says the Galaxy S III mini features a screen measuring 4 inches diagonally, smaller than the Galaxy S III’s 4.8 inch display but the same as Apple’s iPhone 5, which was Apple’s first upgrade of the iPhone screen size.

Samsung said the mini will be launched in Europe later this month but kept mum on schedules for other countries.